Astrophysics

Cosmic particle accelerators

Print edition : January 18, 2019

SLAC researchers have found a new mechanism that could explain how plasma jets emerging from the center of active galaxies accelerate particles to extreme energies. Computer simulations (circled area) showed that tangled magnetic field lines create strong electric fields in the direction of the jets, leading to dense electric currents of high-energy particles streaming away from the galaxy. Photo: Greg Stewart/SLAC National Accelerator Laboratory

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